If Maintenance Is To Be Performed On The Transformer - S&C VacuFuse II Instruction Sheet

Operation
If Maintenance Is to Be Performed on the
Transformer
Follow these steps if maintenance is to be performed on
the transformer:
STEP 1. Open the vacuum interrupter inside the
VacuFuse II Self-Resetting Interrupter by
pulling down on the OPEN/CLOSE lever firmly
using the straight prong of the Talon tool or a
distribution prong. See Figure 7.
STEP 2. Remove the
Interrupter from its mounting after the
interrupter opens and drops-out. If required by
utility practice, follow the steps in the "Removing
the VacuFuse II Interrupter from the Cutout
Mounting" section starting on page 18. This
creates a visible "open gap" showing the
transformer is isolated from the feeder.
Depending on your utility's standard practices,
additional grounds may be required.
STEP 3. Follow your utility's standard practice for
performing transformer maintenance. After
any necessary maintenance or repairs have
been completed, install the VacuFuse II
Self-Resetting Interrupter and close it into the
mounting following the steps described in the
"Installation" section starting on page 9.
14 S&C Instruction Sheet 466-500
VacuFuse II Self-Resetting
OPEN/CLOSE
lever
Figure 7. The OPEN/CLOSE lever in the Closed position.